2002 Chevy Quad Cab Mobile Entertainment - Sight and Sound Made Simple
2. Ducts from the back of the cab extend down and vent under the rear seat. They allow air to pass out of the cab when the doors are being closed to prevent pressure build in the cab. Also, they are designed to reduce the pressure that builds in the cab from driving at highway speed with one window down. The MTX Thunderform sits above these ducts and tucks neatly behind the seat. View Related Article
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